Modified polyisobutylene-based polymers, methods of making, and medical devices

US11548974B2 · kind B2 · utility

Assignee

• Medtronic, Inc. · US

Inventors

• Kimberly A. Chaffin · Plymouth, US
• Xiangji Chen · Plymouth, US
• Matthew Jolly · Minneapolis, US
• SuPing Lyu · Maple Grove, US
• Peter L. Thor · Arden Hills, US
• Darrel F. Untereker · Oak Grove, US
• Zhaoxu Wang · New Brighton, US

Key dates

• Filing date: Dec 4, 2020
• Grant date: Jan 10, 2023
• Expiry date: Dec 4, 2040

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A61N1/362
• WIPO field: Medical technology
• WIPO sector: Instruments

Abstract

A modified polyisobutylene-based polymer, method of making, and a medical device that includes such polymer, wherein the modified polyisobutylene-based polymer includes urethane, urea, or urethane-urea groups, hard segments, and soft segments, wherein the soft segments comprise phenoxy-containing polyisobutylene residues, and the hard segments include diisocyanate residues and optionally chain extender residues.